“The … vitamin E did not change during carvedilol treatment (31.0 ± 10.2 vs ….7 ± 11.1 μmol/L), but it decreased marginally in the atenolol group (30.8 ± 12.1 vs 27.2 ± 9.1 μmol/L, … = 0.056), with a significant between-group difference (P = 0.008).”